Status filter on /node/network/nodes does not match enum

[lynshi]

Describe the bug
Recently, enum values have been PascalCased. As defined here, NodeStatus is Trusted/Pending/Retired. However, /node/network/nodes still expects full capitalization for the status filter. Thus, passing status=Trusted results in an HTTP error "Query parameter 'Trusted' is not a valid node status".

Expected behavior
Acceptable values for the filter should match the NodeStatus enum values.

Environment information
CCF 0.19.2

[achamayou]

@lynshi https://github.com/microsoft/CCF/releases/tag/ccf-0.19.3